Rotary engine



(No Model.)

0. O. WAMPLER 8a B, D. BLOOM.

ROTARY ENGINE.

v N0. 599,410. Patented Feb. 22,1898.

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11s attorney WITNESES 02% 1 llwrrnn SrATEs CHARLES C. WAMPLER AND BENJAMIN D. BLOOM, OF VALLEY FORGE,

MISSOURI.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 599,410, dated February 22, 1898. Application filed June 5, 1897. Serial No. 639,574. (No model.)

To all whom it may concern:

Be it known that we, CHARLES C. WAMPLER and BENJAMIN D. BLooM, citizens of the United States of America, residing at Valley Forge, in the county of St. Frangois and State of Missouri, have invented certain new and useful Improvements in Rotary Engines 3 and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in rotary engines.

The invention consists in the construction and arrangements of the parts, as will be hereinafter specificallyset forth, and pointed out in the claim.

Referring to the drawings forming a part of thisspecification, Figure 1 is a transverse section. Fig. 2 is a similar section.

A refers to one of the side casings, the same having formed integral therewith an offset A and a base A which is concave on its under side, so that the same will fit snugly upon the convex surface of a boiler, and one side of this base is constructed so as to provide a laterallyprojecting portion, the upper face of Which-is horizontal and the edge vertical to provide a seat or hearing for a pump, as will be hereinafter set forth.

B refers to a casing having an offset B, said casing B being adapted to be bolted to the casing A, the former casing having induction and eduction openings formed in the upper part thereof. Both of the casings have openings for the shaft of the engine and are also cut away on their upper inner sides to provide grooves in which the slide or valve reciprocates. The piston O, consists of a circular disk, having near the periphery thereof recesses c c, in which are placed packingrings which are forced against the inner side of the casing by springs to provide be tween the casing and piston tight joints, and to the periphery of this piston are secured abutments 0', having on one side straight faces and on the other a slanting face. These abutments may be formed integral with extensions or thin plates which extend over the face of the piston and opposite the abutment project at substantially right angles with the face of the piston, so as to provide with the straight face of the adjacent abutment a space which is practically rectangular, in which is placed a filling-block d of less width than the face of the piston and of less length than the distance between the face of the piston and the wall of the casing above. The space not occupied by the blocks d is taken up by a packing cl, which may be of any suitable construction. The space which the packing occupies is slightly less than the width of the slide or valve, so that said packing can be put in place or renewed by simply removing the cap or valve-support.

It will be noted that the part of the piston with which the slide or valve comes in contact is removably attached to the periphery of the piston, which considerably reduces the cost of manufacture, and, if desirable, these parts may be made of brass or of a metal different from the slide or valve. The slide or valve E consists of a plate which reciprocates in the ways of the casing, said slide or valve being carried by a cap or support E, which is bolted to the casings, the stem extending therethrough, said stem carrying a spring which engages with a cross-bar mounted on bolts attached to the cap, the stem having a bearing-plate for the spring and an adj usting nut, the tendency of the spring being to force the slide or valve against the periphery of the piston.

The shaft of the engine is supported in bearings formed in the upper portion of the projecting parts of the casing, which are provided with caps having lubricating-cups and openings leading therefrom, and on one side of the engine the shaft has rigidly attached thereto an eccentric G and a pulley H, and on the other side of the engine are a pulley H and balance-wheel I.

K refers to the frame of a pump which is bolted to the base of the engine, the immovable parts thereof being preferably formed integral or of a single casting. The pump is provided with the usual valves, one of which connects with the steam-boiler and the other Ice with the water-supply. The pulley H is in tended to drive a governor, and the connections between the governor and slide or valve of the engine are of ordinary construction.

The engine hereinbefore described is adapted especially for use as a portable engine upon boilers which are mounted upon wheels and are used for driving threshing-machines, and it is desirable that this type of engine be reduced to as few parts as possible and will work effectively when the same is not set up in a true horizontal plane.

Ve are aware that prior to our invention rotary engines have been constructed so as to provide a reciprocating slide orvalve which is moved toward the piston by a spring; also, that it is not new to provide a rotary piston with abutments having on one side vertical faces and on the other inclined faces, said abutments being carried by the piston, so as to raise and lower the slide or valve, and we therefore do not claim such construction broadly; but

What we claim as new, and desire to secure by Letters Patent, is

In a rotary engine, a piston the periphery of which is cylindrical, a pair of plates which embrace the major portion of the periphery of said piston each plate having abutments O which incline on one side and are vertical on the other, theother ends of each plate being bent at right angles so as to be parallel with the straight walls of the abutments O, filling-blocks d cl against which the parallel walls of the plates abut and packings d cl positioned between the walls above the blocks, in combination with a casing having ports and a slide or valve positioned between the ports,

a spring for moving the valves in an opposite direction from what it is moved by the abutments on the plates, substantially as shown and for the purpose set forth.

In testimony whereof we affiX our signatures in presence of two witnesses.

CHARLES C. WAMPLER. BENJAMIN D. BLOOM.

\Vitnesses:

Tues. 13. MARKS, THOS. T. DALTON. 

